CN203617733U - Power battery pack heating system of electric automobile and electric automobile - Google Patents
Power battery pack heating system of electric automobile and electric automobile Download PDFInfo
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- CN203617733U CN203617733U CN201320672282.0U CN201320672282U CN203617733U CN 203617733 U CN203617733 U CN 203617733U CN 201320672282 U CN201320672282 U CN 201320672282U CN 203617733 U CN203617733 U CN 203617733U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a power battery pack heating system of an electric automobile and an electric automobile. The power battery pack heating system comprises a power battery pack, a heating film, a storage battery, a heating switch and a battery management device, wherein the heating film is used for heating the power battery pack, the storage battery supplies power to the heating film when the heating switch is closed, the battery management device is connected with the heating switch, and when the temperature of a single battery of the power battery pack is lower than a preset threshold, the battery management device closes the heating switch to enable the heating film to heat the power battery pack. According to the power battery pack heating system provided by an embodiment of the utility model, the heating film heats the power battery pack in a low-temperature environment, the normal charging or discharging of the power battery pack in the low-temperature environment is ensured, the working performance and the service life of the power battery pack are increased, the distance per charge of the electric automobile is prolonged, and the usage cost is reduced.
Description
Technical field
The utility model relates to electric vehicle engineering field, particularly a kind of power battery pack heating system and electric automobile for electric automobile.
Background technology
Electric automobile on market adopts lithium battery as electrokinetic cell mostly, lithium battery have that operating voltage is large, energy density is large, self-discharge rate is low and the significant advantage such as memory-less effect in, also there is the shortcomings such as poor performance at low temperatures, monomer consistency be poor.For example, lithium battery is 0 while spending in temperature, and its electric weight capacity only has 90% left and right of battery rated capacity; In temperature, for-20 when spend, its electric weight capacity only has 70% left and right of battery rated capacity.Therefore, if the power battery pack of electric automobile works long hours under low temperature environment, because power battery pack activity under low temperature environment is large compared with low, interior resistive, discharge performance and charging performance the shortcoming such as weaken, capacity and the charging cycle cycle of power battery pack will be reduced greatly, cause power battery pack service behaviour and useful life, directly affect course continuation mileage and the use cost of electric automobile.
At present, in order to guarantee that power battery pack can charge normal or discharge under low temperature condition, can heat to improve its temperature to electrokinetic cell, make it reach suitable temperature and carry out again charge or discharge.The mode that electric automobile power battery group is heated mainly contains following several:
(1) adopt the air-conditioning hot blast of electric automobile to heat the power battery pack in battery case;
(2) adopt self power supply of power battery pack to heat power battery pack;
(3) adopt 220V AC power to heat power battery pack.
But the problem existing is at present:
(1) when the air-conditioning hot blast of employing electric automobile heats the power battery pack in battery case, need to redesign and layout the air pipe of electric automobile, battery case and complete vehicle structure, design process complexity, cost is higher, and heating effect is not obvious;
(2) while adopting self power supply of power battery pack to heat power battery pack, due to before power battery pack is not heated, power battery pack just needs electric discharge, therefore affected the performance of power battery pack, and consume the energy of power battery pack, cause increasing the charging interval of power battery pack, reduced the useful life of power battery pack;
(3) while adopting 220V AC power to heat power battery pack, because needs use civil power, power battery pack is heated, therefore have potential safety hazard.
Utility model content
The purpose of this utility model is intended to solve at least to a certain extent above-mentioned technical problem.
For this reason, first object of the present utility model is to propose a kind of power battery pack heating system for electric automobile, this system heats power battery pack by heating film under low temperature environment, guarantee power battery pack charging normal or discharging under low temperature environment, service behaviour and the useful life of power battery pack are increased, the course continuation mileage that has simultaneously improved electric automobile, has reduced use cost.
Second object of the present utility model is to propose a kind of electric automobile.
For achieving the above object, the power battery pack heating system for electric automobile that the utility model first aspect embodiment proposes, comprising: power battery pack; Heating film, described heating film is for heating described power battery pack; Storage battery and heater switch, described storage battery is described heating film power supply in the time that described heater switch is closed; And battery manager, described battery manager is connected with described heater switch, when in described power battery pack, cell temperature is lower than predetermined threshold value, the closed described heater switch of described battery manager so that described heating film described power battery pack is heated.
The power battery pack heating system for electric automobile of the utility model embodiment, under low temperature environment, by heating film, power battery pack is heated, guarantee power battery pack charging normal or discharging under low temperature environment, service behaviour and the useful life of power battery pack are increased, the course continuation mileage that has simultaneously improved electric automobile, has reduced use cost.
To achieve these goals, the electric automobile of the utility model second aspect embodiment, comprises the power battery pack heating system for electric automobile of the utility model first aspect embodiment.
The electric automobile of the utility model embodiment, under low temperature environment, by heating film, power battery pack is heated, guarantee power battery pack charging normal or discharging under low temperature environment, service behaviour and the useful life of power battery pack are increased, the course continuation mileage that has simultaneously improved electric automobile, has reduced use cost.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
The utility model above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is the structural representation of the power battery pack heating system for electric automobile of an embodiment of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, by these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiment of the present utility model, represent some modes of the principle of implementing embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises all changes, modification and the equivalent within the scope of spirit and the intension that falls into additional claims.
Power battery pack heating system and the electric automobile for electric automobile of the utility model embodiment are described below with reference to accompanying drawing.
Fig. 1 is the structural representation of the power battery pack heating system for electric automobile of an embodiment of the utility model.
As shown in Figure 1, for the power battery pack heating system of electric automobile, comprising: power battery pack 110, heating film 120, storage battery 130, heater switch 140, battery manager 150, temperature sensor 160, charger 170, charge switch 180, DC conversion modules 190, electric machine controller 1100 and preliminary filling switch 1110 and positive switch 1120.
Particularly, power battery pack 110 is for providing electric energy to power electric car.Wherein, power battery pack 110 can comprise multiple cells.
Heating film 120 is for heating power battery pack 110.Particularly, heating film 120 can be made up of such as silica gel material etc., and the thickness of this heating film 120 can be arranged thinner so that heating film 120 can be attached at the surface of multiple cells, for example, can utilize heat conductive silica gel to stick on the surface of the cell of various shapes.Because heating film 120 materials of silica gel material are softer, make heating film 120 can be applicable to the power battery pack 110 of various shapes, can be rapidly, heat for power battery pack 110 efficiently.In addition, due to the thinner thickness of heating film 120, therefore, the space that heating film 120 takies is very little, and heat dispersion is also fine.In an embodiment of the present utility model, preferably heating film can be attached to the surface of each cell, thereby heating film 120 is heated respectively to the each cell in power battery pack 110, make thus the temperature of each cell to keep higher consistency, guaranteed power battery pack 110 each monomer battery voltage one straightforward in charging or discharge process.Storage battery 130 and heater switch 140, storage battery 130 is heating film power supply in the time that heater switch 140 is closed.Wherein, storage battery 130 can be lead acid accumulator, and heater switch 140 can be relay.
Battery manager 150, battery manager 150 is connected with heater switch 140, when in power battery pack 110, cell temperature is lower than predetermined threshold value, the closed heater switch 140 of battery manager 160 so that heating film 120 power battery pack 110 is heated.Particularly, battery manager 150 can detect the temperature of power battery pack 110 in real time, and the temperature detecting is analyzed, and controls heating film 120 work according to the result of analyzing by heater switch 140.In addition, battery manager 150 can detect the temperature variations of power battery pack 110 in real time, and estimates the residue heating time that heating film 120 heats power battery pack 110.In an embodiment of the present utility model; battery manager 150 can use for example battery management system BMS(Battery Management System), battery manager 150 can be provided with temperature detecting module, temperature rise computing module and failure protection function module etc.Battery manager 150 can be according to the temperature of the power battery pack 110 detecting, watt level and heating time that estimation need to be heated power battery pack 110.In addition, if heating film 120 is breaking down for power battery pack 110 heating process medium power battery pack 110, for example, power battery pack 110 excess Temperatures, or the situations such as electric voltage exception, battery manager 150 can stop heating film 120 by heater switch 140 power battery pack 110 is heated, and can guarantee thus the safety of power battery pack 110, has avoided potential safety hazard.
In an embodiment of the present utility model, power battery pack heating system for electric automobile also comprises temperature sensor 160, temperature sensor 160 is connected with battery manager 150, temperature sensor 160 detects the temperature of cell in power battery pack 110, and the temperature signal detecting is sent to battery manager 150.
In an embodiment of the present utility model, also comprise charger 170 and charge switch 180 for the power battery pack heating system of electric automobile.Particularly, charge switch 180 is connected between charger 170 and power battery pack 110, charge switch 180 is connected with battery manager 150, in the time that charger 170 charges to power battery pack 110, if the temperature of cell is lower than predetermined threshold value in power battery pack 110, battery manager 150 turn off charge switch 180 and by heating film 120, power battery pack 110 is heated until in power battery pack 110 temperature of cell be not less than predetermined threshold value, the closed charge switch 180 of battery manager 150 also charges to power battery pack 110 by charger 170.
In an embodiment of the present utility model, also comprise DC conversion modules 190 for the power battery pack heating system of electric automobile.DC conversion modules 190 is connected with storage battery 130 with power battery pack 110 respectively, and the voltage that the output voltage of power battery pack 110 is converted to predeterminated voltage value by DC conversion modules 190 is that storage battery 130 charges.
In an embodiment of the present utility model, also comprise electric machine controller 1100 and preliminary filling switch 1110 for the power battery pack heating system of electric automobile.Wherein, preliminary filling switch 1110 can be relay.Particularly, preliminary filling switch 1110 is connected between electric machine controller 1100 and battery manager 150, preliminary filling switch 1110 is connected with battery manager 150, in the time that electric automobile starts, if the temperature of cell is lower than predetermined threshold value in power battery pack 110, battery manager 150 disconnect preliminary filling switch 1110 and by heating film 120, power battery pack 110 is heated until in power battery pack 110 temperature of cell be not less than predetermined threshold value, the closed preliminary filling switch 1110 of battery manager 150 also carries out precharge by preliminary filling switch 1110 to electric machine controller 1100.
In an embodiment of the present utility model, also comprise positive switch 1120 for the power battery pack heating system of electric automobile.Wherein, positive switch 1120 can be relay.Particularly, power battery pack 110 is connected with the positive pole of electric machine controller 1100 by positive switch 1120, and positive switch 1120 is connected with battery manager 150, after electric machine controller 1100 is carried out to precharge, battery manager 150 disconnects preliminary filling switch 1110 closed positive switch 1120.
Elaborate the working method for the power battery pack heating system of electric automobile below.In the time that power battery pack 110 need to be charged, battery manager 150 detects the operating state of charger 170, and detects the Current Temperatures of power battery pack 110.If detect that the Current Temperatures of power battery pack 110 is normal temperature, the Current Temperatures that is power battery pack 110 is not less than predetermined threshold value, the closed charge switch 180 of battery manager 150, and keep heater switch 140, preliminary filling switch 1110 and positive switch 1120 all to disconnect.Now, power battery pack 110 is connected with charger 170, and charger 170 charges normal power battery pack 110.
If the Current Temperatures that battery manager 150 detects power battery pack 110 is when allowing the design temperature threshold values of charging, be that the Current Temperatures of power battery pack 110 is lower than predetermined threshold value, the closed heater switch 140 of battery manager 150, and guarantee that charge switch 180, preliminary filling switch 1110 and positive switch 1120 all disconnect.Now, storage battery 130 and heating film 120 are connected, storage battery 130 by low-voltage direct 12V is powered for electric heating film 120, the Current Temperatures of power battery pack 110 can be brought up at short notice after the pre-set threshold value that allows charging, battery manager 150 is controlled heater switch 140 and is disconnected, and heating film 120 stops power battery pack 110 to heat.Then the closed charge switch 180 of battery manager 150, and keep heater switch 140, preliminary filling switch 1110 and positive switch 1120 all to disconnect.Now, power battery pack 110 is connected with charger 170, and charger 170 charges normal power battery pack 110.
In the time that electric automobile need to start operation, after electric automobile starts, battery manager 150 detects the Current Temperatures of power battery pack 110.If detect that the Current Temperatures of power battery pack 110 is normal temperature, the Current Temperatures that is power battery pack 110 is not less than predetermined threshold value, the closed preliminary filling switch 1110 of battery manager 150, and keep heater switch 140, charge switch 180 and positive switch 1120 all to disconnect.Now, power battery pack 110 is connected with electric machine controller 1100, and power battery pack 110 is carried out precharge to electric machine controller 1100.After precharge completes, battery manager 150 disconnects preliminary filling switch 1110, simultaneously closed positive switch 1120.Now, power battery pack 110 is connected with electric machine controller 1100, and the drive motors that power battery pack 110 is electric automobile provides electric energy, and electric automobile can be realized normal operation.
If when the design temperature threshold values that power battery pack 110 temperature that battery manager 150 detects are discharged lower than permission, be that the Current Temperatures of power battery pack 110 is lower than predetermined threshold value, the closed heater switch 140 of battery manager 150, and guarantee that charge switch 180, preliminary filling switch 1110 and positive switch 1120 all disconnect.Now, storage battery 130 and heating film 120 are connected, storage battery 130 by low-voltage direct 12V is powered for heating film 120, the temperature of power battery pack 110 can be brought up at short notice after the setting threshold values that allows electric discharge, battery manager 150 is controlled heater switch 140 and is disconnected, and heating film 120 stops power battery pack 110 to heat.Then the closed preliminary filling switch 1110 of battery manager 150, and keep heater switch 140, charge switch 180 and positive switch 1120 all to disconnect.Now, power battery pack 110 is connected with electric machine controller 1100, and power battery pack 110 is carried out precharge to electric machine controller 1100.After precharge completes, battery manager 150 disconnects preliminary filling switch 1110, simultaneously closed positive switch 1120.Now, power battery pack 110 is connected with electric machine controller 1100, and the drive motors that power battery pack 110 is electric automobile provides electric energy, and electric automobile can be realized normal operation.
The power battery pack heating system for electric automobile of the utility model embodiment, under low temperature environment, by heating film, power battery pack is heated, guarantee power battery pack charging normal or discharging under low temperature environment, service behaviour and the useful life of power battery pack are increased, the course continuation mileage that has simultaneously improved electric automobile, has reduced use cost.
In order to realize above-described embodiment, the utility model also proposes a kind of electric automobile.
A kind of electric automobile, comprises the power battery pack heating system for electric automobile of the utility model first aspect embodiment.
The electric automobile of the utility model embodiment, under low temperature environment, by heating film, power battery pack is heated, guarantee power battery pack charging normal or discharging under low temperature environment, service behaviour and the useful life of power battery pack are increased, the course continuation mileage that has simultaneously improved electric automobile, has reduced use cost.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple steps or method can realize with being stored in software or the firmware carried out in memory and by suitable instruction execution system.For example, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic for data-signal being realized to the logic gates of logic function, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. for a power battery pack heating system for electric automobile, it is characterized in that, comprising:
Power battery pack;
Heating film, described heating film is for heating described power battery pack;
Storage battery and heater switch, described storage battery is described heating film power supply in the time that described heater switch is closed; And
Battery manager, described battery manager is connected with described heater switch, when in described power battery pack, cell temperature is lower than predetermined threshold value, the closed described heater switch of described battery manager so that described heating film described power battery pack is heated.
2. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, also comprises:
Temperature sensor, described temperature sensor is connected with described battery manager, and described temperature sensor detects the temperature of cell in described power battery pack, and the temperature signal detecting is sent to described battery manager.
3. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, described power battery pack comprises multiple cells, and described heating film is attached at the surface of described multiple cells.
4. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, described storage battery is lead acid accumulator, and described heater switch is relay.
5. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, also comprises:
Charger;
Be connected to the charge switch between described charger and described power battery pack, described charge switch is connected with described battery manager, in the time that described charger charges to described power battery pack, if the temperature of cell is lower than predetermined threshold value in described power battery pack, described battery manager disconnect described charge switch and by described heating film, described power battery pack is heated until in described power battery pack the temperature of cell be not less than predetermined threshold value, the closed described charge switch of described battery manager also charges to described power battery pack by described charger.
6. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, also comprises:
DC conversion modules, described DC conversion modules is connected with described storage battery with described power battery pack respectively, and the voltage that the output voltage of described power battery pack is converted to predeterminated voltage value by described DC conversion modules is described charge in batteries.
7. the power battery pack heating system for electric automobile as claimed in claim 1, is characterized in that, also comprises:
Electric machine controller;
Be connected to the preliminary filling switch between described electric machine controller and described battery manager, described preliminary filling switch is connected with described battery manager, in the time that described electric automobile starts, if the temperature of cell is lower than predetermined threshold value in described power battery pack, described battery manager disconnect described preliminary filling switch and by described heating film, described power battery pack is heated until in described power battery pack the temperature of cell be not less than predetermined threshold value, the closed described preliminary filling switch of described battery manager also carries out precharge by described preliminary filling switch to described electric machine controller.
8. the power battery pack heating system for electric automobile as claimed in claim 7, is characterized in that, also comprises:
Positive switch, described power battery pack is connected with the positive pole of described electric machine controller by described positive switch, and described positive switch is connected with described battery manager, after electric machine controller is carried out to precharge, described battery manager disconnects described preliminary filling switch closed described positive switch.
9. as claimed in claim 8 for the power battery pack heating system of electric automobile, it is characterized in that, described preliminary filling switch and described positive switch are relay.
10. an electric automobile, is characterized in that, comprises the power battery pack heating system for electric automobile as described in claim 1-9 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320672282.0U CN203617733U (en) | 2013-10-29 | 2013-10-29 | Power battery pack heating system of electric automobile and electric automobile |
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| CN201320672282.0U CN203617733U (en) | 2013-10-29 | 2013-10-29 | Power battery pack heating system of electric automobile and electric automobile |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104242388A (en) * | 2014-09-01 | 2014-12-24 | 广东欧珀移动通信有限公司 | Charging circuit, battery core and mobile terminal |
| CN104393368A (en) * | 2014-09-25 | 2015-03-04 | 北京现代汽车有限公司 | Method and apparatus for determining remaining heating time for heating power battery to achieve rechargeable temperature |
| CN105226757A (en) * | 2015-10-27 | 2016-01-06 | 北京新能源汽车股份有限公司 | fault diagnosis device and method for battery heating system |
| CN105553012A (en) * | 2015-12-31 | 2016-05-04 | 惠州市亿能电子有限公司 | Low-temperature charging control system and control method |
| CN105977559A (en) * | 2016-07-11 | 2016-09-28 | 安庆新景技电子科技有限公司 | Vehicle battery management method |
| CN106848486A (en) * | 2017-01-09 | 2017-06-13 | 广东小天才科技有限公司 | Battery heating method, system and device in low-temperature environment |
| CN107946699A (en) * | 2017-10-31 | 2018-04-20 | 苏州孔雀动力能源有限公司 | A kind of batteries of electric automobile bag, heating system and its heating means |
| CN108334127A (en) * | 2018-01-31 | 2018-07-27 | 湖南威威胜新能源技术有限公司 | A kind of temprature control method for communication power supply |
| CN108515875A (en) * | 2018-05-10 | 2018-09-11 | 奇瑞汽车股份有限公司 | A kind of electric automobile power battery heat management system and method |
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| CN109585974A (en) * | 2018-11-01 | 2019-04-05 | 北京长城华冠汽车科技股份有限公司 | Power battery, power battery heating means and electric car |
| CN110254287A (en) * | 2019-05-30 | 2019-09-20 | 北京长城华冠汽车科技股份有限公司 | Control method, device, medium and the electric vehicle of electric vehicle |
| CN110265738A (en) * | 2019-06-28 | 2019-09-20 | 山东精工电子科技有限公司 | Lithium battery group control system and lithium battery and control method |
| CN110504505A (en) * | 2018-05-17 | 2019-11-26 | 大众汽车有限公司 | The device and method of temperature adjusting for battery, secondary battery unit |
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| CN112977157A (en) * | 2021-03-11 | 2021-06-18 | 奇瑞新能源汽车股份有限公司 | Heat management method and device of power battery, vehicle control unit and electric vehicle |
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| CN104242388B (en) * | 2014-09-01 | 2017-06-30 | 广东欧珀移动通信有限公司 | Charging circuit, battery core and mobile terminal |
| CN104242388A (en) * | 2014-09-01 | 2014-12-24 | 广东欧珀移动通信有限公司 | Charging circuit, battery core and mobile terminal |
| US10826309B2 (en) | 2014-09-01 | 2020-11-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, heating apparatus and charging method for battery |
| CN104393368B (en) * | 2014-09-25 | 2018-08-21 | 北京现代汽车有限公司 | The remaining heating time that power battery is heated to chargeable temperature determines method, apparatus |
| CN104393368A (en) * | 2014-09-25 | 2015-03-04 | 北京现代汽车有限公司 | Method and apparatus for determining remaining heating time for heating power battery to achieve rechargeable temperature |
| CN105226757A (en) * | 2015-10-27 | 2016-01-06 | 北京新能源汽车股份有限公司 | fault diagnosis device and method for battery heating system |
| CN105553012A (en) * | 2015-12-31 | 2016-05-04 | 惠州市亿能电子有限公司 | Low-temperature charging control system and control method |
| CN105977559A (en) * | 2016-07-11 | 2016-09-28 | 安庆新景技电子科技有限公司 | Vehicle battery management method |
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